| 1 | /* | |
| 2 | * Copyright 1999-2006 University of Chicago | |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | ||
| 17 | #include "globus_soap_message.h" | |
| 18 | #include "globus_i_wsrf_resource.h" | |
| 19 | ||
| 20 | #ifndef GLOBUS_DONT_DOCUMENT_INTERNAL | |
| 21 | /** | |
| 22 | * @file globus_wsrf_resource.c | |
| 23 | * | |
| 24 | * Module implementation and resource creation/destruction functions. | |
| 25 | */ | |
| 26 | static | |
| 27 | int | |
| 28 | globus_l_wsrf_resource_activate(void); | |
| 29 | ||
| 30 | static | |
| 31 | int | |
| 32 | globus_l_wsrf_resource_deactivate(void); | |
| 33 | ||
| 34 | static | |
| 35 | void | |
| 36 | globus_l_wsrf_resource_hashtable_destroy( | |
| 37 | void * datum); | |
| 38 | ||
| 39 | static | |
| 40 | void | |
| 41 | globus_l_resource_destroy( | |
| 42 | globus_resource_t resource); | |
| 43 | ||
| 44 | static | |
| 45 | void | |
| 46 | globus_l_resource_property_destroy( | |
| 47 | void * datum); | |
| 48 | ||
| 49 | static | |
| 50 | void | |
| 51 | globus_l_resource_lifetime_expired( | |
| 52 | void * arg); | |
| 53 | ||
| 54 | static | |
| 55 | int | |
| 56 | globus_l_resource_try_lock( | |
| 57 | globus_resource_t resource); | |
| 58 | ||
| 59 | static | |
| 60 | void | |
| 61 | globus_l_resource_lock( | |
| 62 | globus_resource_t resource); | |
| 63 | static | |
| 64 | void | |
| 65 | globus_l_resource_unlock( | |
| 66 | globus_resource_t resource); | |
| 67 | ||
| 68 | static | |
| 69 | void | |
| 70 | globus_l_resource_destroy_keyed_data( | |
| 71 | void * p); | |
| 72 | ||
| 73 | 0 | GlobusDebugDefine(GLOBUS_RESOURCE); |
| 74 | ||
| 75 | /** | |
| 76 | * Table mapping resource id strings to resource instances. | |
| 77 | */ | |
| 78 | static globus_hashtable_t globus_l_wsrf_resources; | |
| 79 | /** | |
| 80 | * Lock for resource table. | |
| 81 | */ | |
| 82 | static globus_mutex_t globus_l_wsrf_resource_lock; | |
| 83 | ||
| 84 | globus_module_descriptor_t | |
| 85 | globus_i_wsrf_resource_module = | |
| 86 | { | |
| 87 | "globus_wsrf_resource", | |
| 88 | globus_l_wsrf_resource_activate, | |
| 89 | globus_l_wsrf_resource_deactivate | |
| 90 | }; | |
| 91 | ||
| 92 | /** | |
| 93 | * Activate the WSRF Resource module. | |
| 94 | * | |
| 95 | * Activate modules this one uses, create the resource ID : resource hashtable | |
| 96 | * and lock. | |
| 97 | * | |
| 98 | * @retval GLOBUS_SUCCESS | |
| 99 | * Module successfully activated. | |
| 100 | * @retval 1 | |
| 101 | * Unable to activate module. | |
| 102 | */ | |
| 103 | static | |
| 104 | int | |
| 105 | globus_l_wsrf_resource_activate(void) | |
| 106 | { | |
| 107 | 173 | int rc; |
| 108 | ||
| 109 | 173 | rc = globus_module_activate(GLOBUS_COMMON_MODULE); |
| 110 | 173 | if (rc != GLOBUS_SUCCESS) |
| 111 | { | |
| 112 | 0 | goto error; |
| 113 | } | |
| 114 | 173 | GlobusDebugInit(GLOBUS_RESOURCE, DEBUG INFO TRACE WARN ERROR); |
| 115 | ||
| 116 | 173 | rc = globus_module_activate(GLOBUS_SOAP_MESSAGE_MODULE); |
| 117 | ||
| 118 | 173 | if (rc != GLOBUS_SUCCESS) |
| 119 | { | |
| 120 | 0 | goto deactivate_common_error; |
| 121 | } | |
| 122 | ||
| 123 | 173 | rc = globus_hashtable_init(&globus_l_wsrf_resources, |
| 124 | 16, | |
| 125 | globus_hashtable_string_hash, | |
| 126 | globus_hashtable_string_keyeq); | |
| 127 | ||
| 128 | 173 | if (rc != GLOBUS_SUCCESS) |
| 129 | { | |
| 130 | 0 | goto deactivate_message_error; |
| 131 | } | |
| 132 | ||
| 133 | 173 | rc = globus_mutex_init(&globus_l_wsrf_resource_lock, NULL); |
| 134 | 173 | if (rc != GLOBUS_SUCCESS) |
| 135 | { | |
| 136 | 0 | goto destroy_hashtable_error; |
| 137 | } | |
| 138 | ||
| 139 | 173 | return GLOBUS_SUCCESS; |
| 140 | ||
| 141 | destroy_hashtable_error: | |
| 142 | 0 | globus_hashtable_destroy(&globus_l_wsrf_resources); |
| 143 | deactivate_message_error: | |
| 144 | 0 | globus_module_deactivate(GLOBUS_SOAP_MESSAGE_MODULE); |
| 145 | deactivate_common_error: | |
| 146 | 0 | GlobusDebugDestroy(GLOBUS_RESOURCE); |
| 147 | 0 | globus_module_deactivate(GLOBUS_COMMON_MODULE); |
| 148 | error: | |
| 149 | 0 | return 1; |
| 150 | } | |
| 151 | /* globus_l_wsrf_resource_activate() */ | |
| 152 | ||
| 153 | static | |
| 154 | int | |
| 155 | globus_l_wsrf_resource_deactivate(void) | |
| 156 | 100 | { |
| 157 | 100 | globus_mutex_lock(&globus_l_wsrf_resource_lock); |
| 158 | ||
| 159 | 100 | globus_hashtable_destroy_all( |
| 160 | &globus_l_wsrf_resources, | |
| 161 | globus_l_wsrf_resource_hashtable_destroy); | |
| 162 | ||
| 163 | 100 | globus_mutex_unlock(&globus_l_wsrf_resource_lock); |
| 164 | 100 | globus_mutex_destroy(&globus_l_wsrf_resource_lock); |
| 165 | 100 | globus_module_deactivate(GLOBUS_SOAP_MESSAGE_MODULE); |
| 166 | 100 | GlobusDebugDestroy(GLOBUS_RESOURCE); |
| 167 | 100 | globus_module_deactivate(GLOBUS_COMMON_MODULE); |
| 168 | ||
| 169 | 100 | return 0; |
| 170 | } | |
| 171 | /* globus_l_wsrf_resource_deactivate() */ | |
| 172 | #endif /* GLOBUS_DONT_DOCUMENT_INTERNAL */ | |
| 173 | ||
| 174 | /** | |
| 175 | * Create a new WSRF Resource. | |
| 176 | * @ingroup resource | |
| 177 | * | |
| 178 | * Allocate a new WSRF resource and lock the reference to | |
| 179 | * it. Every call to globus_resource_find() must be paired with | |
| 180 | * a call to globus_resource_finish(). The service which | |
| 181 | * calls globus_resource_create() must call globus_resource_destroy() or | |
| 182 | * globus_resource_set_destroy_time() to cause the resource to be destroyed. | |
| 183 | * | |
| 184 | * @param id | |
| 185 | * Identifier to use for the new resource. | |
| 186 | * @param resource | |
| 187 | * Pointer to be set to the newly created resource handle. | |
| 188 | * | |
| 189 | * @retval GLOBUS_SUCCESS | |
| 190 | * New resource created successfully. | |
| 191 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 192 | * One of the parameters to this function was NULL. | |
| 193 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_DUPLICATE_RESOURCE | |
| 194 | * Another resource with the specified id already exists, so a new one | |
| 195 | * could not be created. | |
| 196 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_OUT_OF_MEMORY | |
| 197 | * Insufficient memory to create the new resource. | |
| 198 | * | |
| 199 | * @see globus_resource_find(), globus_resource_finish() | |
| 200 | */ | |
| 201 | globus_result_t | |
| 202 | globus_resource_create( | |
| 203 | const char * id, | |
| 204 | globus_resource_t * resource) | |
| 205 | 444 | { |
| 206 | 444 | globus_resource_t iresource; |
| 207 | 444 | globus_result_t result = GLOBUS_SUCCESS; |
| 208 | 444 | int rc; |
| 209 | 444 | GlobusFuncName(globus_resource_create); |
| 210 | ||
| 211 | 444 | GlobusResourceDebugEnter(); |
| 212 | ||
| 213 | 444 | if (id == NULL || resource == NULL) |
| 214 | { | |
| 215 | 3 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 216 | 3 | goto error; |
| 217 | } | |
| 218 | ||
| 219 | 441 | globus_mutex_lock(&globus_l_wsrf_resource_lock); |
| 220 | ||
| 221 | 441 | iresource = globus_hashtable_lookup(&globus_l_wsrf_resources, (void *) id); |
| 222 | ||
| 223 | 441 | if (iresource != NULL) |
| 224 | { | |
| 225 | 1 | result = GLOBUS_RESOURCE_ERROR_DUPLICATE_RESOURCE(id); |
| 226 | ||
| 227 | 1 | goto unlock_error; |
| 228 | } | |
| 229 | ||
| 230 | 440 | iresource = globus_calloc(1, sizeof(struct globus_resource_s)); |
| 231 | 440 | if (iresource == NULL) |
| 232 | { | |
| 233 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 234 | ||
| 235 | 0 | goto unlock_error; |
| 236 | } | |
| 237 | ||
| 238 | 440 | iresource->id = globus_libc_strdup(id); |
| 239 | 440 | if (iresource->id == NULL) |
| 240 | { | |
| 241 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 242 | ||
| 243 | 0 | goto free_resource_error; |
| 244 | } | |
| 245 | ||
| 246 | 440 | rc = globus_hashtable_init(&iresource->resource_properties, |
| 247 | 31, | |
| 248 | xsd_QName_hash, | |
| 249 | xsd_QName_keyeq); | |
| 250 | ||
| 251 | 440 | if (rc != GLOBUS_SUCCESS) |
| 252 | { | |
| 253 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 254 | ||
| 255 | 0 | goto free_id_out; |
| 256 | } | |
| 257 | ||
| 258 | 440 | iresource->thread_id = globus_thread_self(); |
| 259 | 440 | iresource->lock_count = 1; |
| 260 | ||
| 261 | 440 | iresource->lifetime_callback = GLOBUS_NULL_HANDLE; |
| 262 | ||
| 263 | 440 | rc = globus_hashtable_insert( |
| 264 | &globus_l_wsrf_resources, | |
| 265 | iresource->id, | |
| 266 | iresource); | |
| 267 | ||
| 268 | 440 | if (rc != GLOBUS_SUCCESS) |
| 269 | { | |
| 270 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 271 | ||
| 272 | 0 | goto destroy_hashtable_out; |
| 273 | } | |
| 274 | ||
| 275 | 440 | iresource->property_changed_callbacks = NULL; |
| 276 | ||
| 277 | 440 | *resource = iresource; |
| 278 | ||
| 279 | 440 | globus_mutex_unlock(&globus_l_wsrf_resource_lock); |
| 280 | 440 | GlobusResourceDebugExit(); |
| 281 | 440 | return result; |
| 282 | ||
| 283 | destroy_hashtable_out: | |
| 284 | 0 | globus_hashtable_destroy(&iresource->resource_properties); |
| 285 | free_id_out: | |
| 286 | 0 | globus_libc_free(iresource->id); |
| 287 | free_resource_error: | |
| 288 | 0 | globus_libc_free(iresource); |
| 289 | unlock_error: | |
| 290 | 1 | globus_mutex_unlock(&globus_l_wsrf_resource_lock); |
| 291 | error: | |
| 292 | 4 | GlobusResourceDebugExit(); |
| 293 | 4 | return result; |
| 294 | } | |
| 295 | /* globus_resource_create() */ | |
| 296 | ||
| 297 | /** | |
| 298 | * Find and lock the resource associated with a resource identifier. | |
| 299 | * @ingroup resource | |
| 300 | * | |
| 301 | * Returns a reference to the resource associated with the id. | |
| 302 | * Release this reference by calling #globus_resource_finish(), or destroy | |
| 303 | * the resource by calling #globus_resource_destroy(). | |
| 304 | * | |
| 305 | * @param id | |
| 306 | * Resource identifier for the desired resource. | |
| 307 | * @param resource | |
| 308 | * Pointer to a resource which will modified to point to the | |
| 309 | * named resource if it is found. | |
| 310 | * | |
| 311 | * @retval GLOBUS_SUCCESS | |
| 312 | * The resource associated with the specified id was found and a reference | |
| 313 | * to it was returned in the @a resource parameter. | |
| 314 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 315 | * One of the parameters to this function was NULL. | |
| 316 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_UNKNOWN_RESOURCE | |
| 317 | * No resource with the specified id exists. | |
| 318 | * @see #globus_resource_create() | |
| 319 | */ | |
| 320 | globus_result_t | |
| 321 | globus_resource_find( | |
| 322 | const char * id, | |
| 323 | globus_resource_t * resource) | |
| 324 | 3297 | { |
| 325 | 3297 | globus_resource_t iresource; |
| 326 | 3297 | globus_result_t result; |
| 327 | 3297 | GlobusFuncName(globus_resource_find); |
| 328 | ||
| 329 | 3297 | GlobusResourceDebugEnter(); |
| 330 | 3297 | if (id == NULL || resource == NULL) |
| 331 | { | |
| 332 | 0 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 333 | ||
| 334 | 0 | goto out; |
| 335 | } | |
| 336 | ||
| 337 | /* look up in hashtable */ | |
| 338 | 3297 | globus_mutex_lock(&globus_l_wsrf_resource_lock); |
| 339 | 3297 | iresource = globus_hashtable_lookup(&globus_l_wsrf_resources, (void *) id); |
| 340 | 3297 | if (iresource == NULL) |
| 341 | { | |
| 342 | 21 | result = GLOBUS_RESOURCE_ERROR_UNKNOWN_RESOURCE(id); |
| 343 | ||
| 344 | 21 | goto unlock_error; |
| 345 | } | |
| 346 | ||
| 347 | 3276 | globus_l_resource_lock(iresource); |
| 348 | ||
| 349 | 3276 | *resource = iresource; |
| 350 | 3276 | globus_mutex_unlock(&globus_l_wsrf_resource_lock); |
| 351 | ||
| 352 | 3276 | GlobusResourceDebugExit(); |
| 353 | 3276 | return GLOBUS_SUCCESS; |
| 354 | ||
| 355 | unlock_error: | |
| 356 | 21 | globus_mutex_unlock(&globus_l_wsrf_resource_lock); |
| 357 | ||
| 358 | out: | |
| 359 | 21 | GlobusResourceDebugExit(); |
| 360 | 21 | return result; |
| 361 | } | |
| 362 | /* globus_resource_find() */ | |
| 363 | ||
| 364 | /** | |
| 365 | * Release a reference to a resource. | |
| 366 | * @ingroup resource | |
| 367 | * | |
| 368 | * The caller must no longer access the resource reference once this function | |
| 369 | * returns. This function destroys the resource when all references to the | |
| 370 | * resource have been finished and globus_resource_destroy() or the time | |
| 371 | * passed to globus_resource_set_destroy_time() has elapsed. | |
| 372 | * | |
| 373 | * @param resource | |
| 374 | * Resource handle which is no longer being used. | |
| 375 | * | |
| 376 | * @retval GLOBUS_SUCCESS | |
| 377 | * Successfully finished using the resource handle. | |
| 378 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 379 | * Null resource handle passed to this function. | |
| 380 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NO_REFERENCES | |
| 381 | * No references to resource exist. | |
| 382 | * | |
| 383 | * @see #globus_resource_find(), #globus_resource_create() | |
| 384 | */ | |
| 385 | globus_result_t | |
| 386 | globus_resource_finish( | |
| 387 | globus_resource_t resource) | |
| 388 | 3319 | { |
| 389 | 3319 | globus_result_t result = GLOBUS_SUCCESS; |
| 390 | 3319 | GlobusFuncName(globus_resource_finish); |
| 391 | ||
| 392 | 3319 | GlobusResourceDebugEnter(); |
| 393 | 3319 | if (resource == NULL) |
| 394 | { | |
| 395 | 1 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 396 | ||
| 397 | 1 | goto out; |
| 398 | } | |
| 399 | ||
| 400 | 3318 | globus_mutex_lock(&globus_l_wsrf_resource_lock); |
| 401 | 3318 | globus_l_resource_unlock(resource); |
| 402 | 3318 | globus_mutex_unlock(&globus_l_wsrf_resource_lock); |
| 403 | ||
| 404 | out: | |
| 405 | 3319 | GlobusResourceDebugExit(); |
| 406 | 3319 | return result; |
| 407 | } | |
| 408 | /* globus_resource_finish() */ | |
| 409 | ||
| 410 | /** | |
| 411 | * Schedule delayed destruction of a resource. | |
| 412 | * @ingroup resource | |
| 413 | * | |
| 414 | * When the time indicated by the @a timestamp parameter has been reached, the | |
| 415 | * resource will be destroyed once all remaining references to the resource | |
| 416 | * have been finished. | |
| 417 | * | |
| 418 | * If globus_resource_destroy() is called before this time has been reached, | |
| 419 | * the timestamp is effectively ignored. | |
| 420 | * | |
| 421 | * @param resource | |
| 422 | * Resource handle which is no longer being used. | |
| 423 | * @param timestamp | |
| 424 | * Time when the resource should be destroyed. | |
| 425 | * | |
| 426 | * @retval GLOBUS_SUCCESS | |
| 427 | * Successfully set the destroy timeout for the resource handle. | |
| 428 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 429 | * Null resource handle passed to this function. | |
| 430 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_ALREADY_DESTROYED | |
| 431 | * The resource has already been destroyed. | |
| 432 | * | |
| 433 | * @see #globus_resource_create(), #globus_resource_destroy() | |
| 434 | */ | |
| 435 | globus_result_t | |
| 436 | globus_resource_set_destroy_time( | |
| 437 | globus_resource_t resource, | |
| 438 | const globus_abstime_t * timestamp) | |
| 439 | 26 | { |
| 440 | 26 | globus_result_t result; |
| 441 | 26 | globus_bool_t active; |
| 442 | 26 | globus_abstime_t now; |
| 443 | 26 | globus_reltime_t delay; |
| 444 | 26 | char * tmp_id; |
| 445 | 26 | GlobusFuncName(globus_resource_set_destroy_time); |
| 446 | ||
| 447 | 26 | GlobusResourceDebugEnter(); |
| 448 | 26 | if (resource == NULL || timestamp == NULL) |
| 449 | { | |
| 450 | 2 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 451 | ||
| 452 | 2 | goto out; |
| 453 | } | |
| 454 | ||
| 455 | 24 | tmp_id = globus_libc_strdup(resource->id); |
| 456 | ||
| 457 | 24 | if (tmp_id == NULL) |
| 458 | { | |
| 459 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 460 | ||
| 461 | 0 | goto out; |
| 462 | } | |
| 463 | ||
| 464 | 24 | if (resource->lifetime_callback != GLOBUS_NULL_HANDLE) |
| 465 | { | |
| 466 | /* Try to cancel the previous instance of the lifetime callback */ | |
| 467 | 0 | result = globus_callback_unregister( |
| 468 | resource->lifetime_callback, | |
| 469 | NULL, | |
| 470 | NULL, | |
| 471 | &active); | |
| 472 | ||
| 473 | 0 | if (result != GLOBUS_SUCCESS || active) |
| 474 | { | |
| 475 | /* Callback can't be stopped---assume this resource is already | |
| 476 | * going to be destroyed very soon. | |
| 477 | */ | |
| 478 | 0 | result = GLOBUS_RESOURCE_ERROR_ALREADY_DESTROYED(); |
| 479 | ||
| 480 | 0 | goto free_tmp_id_out; |
| 481 | } | |
| 482 | 0 | resource->lifetime_callback = GLOBUS_NULL_HANDLE; |
| 483 | ||
| 484 | 0 | resource->destroy_time.tv_sec = 0L; |
| 485 | 0 | resource->destroy_time.tv_nsec = 0L; |
| 486 | } | |
| 487 | ||
| 488 | 24 | GlobusTimeAbstimeSet(now, 0, 0); |
| 489 | ||
| 490 | 24 | if (globus_abstime_cmp(&now, timestamp) >= 0) |
| 491 | { | |
| 492 | 0 | delay.tv_sec = 0; |
| 493 | 0 | delay.tv_usec = 0; |
| 494 | } | |
| 495 | else | |
| 496 | { | |
| 497 | 24 | GlobusTimeAbstimeDiff(delay, *timestamp, now); |
| 498 | } | |
| 499 | ||
| 500 | 24 | result = globus_callback_register_oneshot( |
| 501 | &resource->lifetime_callback, | |
| 502 | &delay, | |
| 503 | globus_l_resource_lifetime_expired, | |
| 504 | tmp_id); | |
| 505 | ||
| 506 | 24 | if (result == GLOBUS_SUCCESS) |
| 507 | { | |
| 508 | 24 | tmp_id = NULL; |
| 509 | } | |
| 510 | else | |
| 511 | { | |
| 512 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 513 | } | |
| 514 | 24 | resource->destroy_time.tv_sec = timestamp->tv_sec; |
| 515 | 24 | resource->destroy_time.tv_nsec = timestamp->tv_nsec; |
| 516 | ||
| 517 | free_tmp_id_out: | |
| 518 | 24 | if (tmp_id) |
| 519 | { | |
| 520 | 0 | globus_libc_free(tmp_id); |
| 521 | } | |
| 522 | out: | |
| 523 | 26 | GlobusResourceDebugExit(); |
| 524 | ||
| 525 | 26 | return result; |
| 526 | } | |
| 527 | /* globus_resource_set_destroy_time() */ | |
| 528 | ||
| 529 | /** | |
| 530 | * Get scheduled destruction time of a resource. | |
| 531 | * @ingroup resource | |
| 532 | * | |
| 533 | * @param resource | |
| 534 | * Resource handle to check. | |
| 535 | * @param timestamp | |
| 536 | * Pointer to value to be set to the time when the resource should be | |
| 537 | * destroyed. | |
| 538 | * | |
| 539 | * @retval GLOBUS_SUCCESS | |
| 540 | * Successfully set the destroy timeout for the resource handle. | |
| 541 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 542 | * Null resource handle passed to this function. | |
| 543 | * | |
| 544 | * @see #globus_resource_create(), #globus_resource_destroy() | |
| 545 | */ | |
| 546 | globus_result_t | |
| 547 | globus_resource_get_destroy_time( | |
| 548 | const globus_resource_t resource, | |
| 549 | globus_abstime_t * timestamp) | |
| 550 | 95 | { |
| 551 | 95 | globus_result_t result = GLOBUS_SUCCESS; |
| 552 | 95 | GlobusFuncName(globus_resource_get_destroy_time); |
| 553 | ||
| 554 | 95 | GlobusResourceDebugEnter(); |
| 555 | 95 | if (resource == NULL || timestamp == NULL) |
| 556 | { | |
| 557 | 0 | return GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 558 | } | |
| 559 | ||
| 560 | 95 | timestamp->tv_sec = resource->destroy_time.tv_sec; |
| 561 | 95 | timestamp->tv_nsec = resource->destroy_time.tv_nsec; |
| 562 | ||
| 563 | 95 | GlobusResourceDebugExit(); |
| 564 | 95 | return result; |
| 565 | } | |
| 566 | /* globus_resource_get_destroy_time() */ | |
| 567 | ||
| 568 | /** | |
| 569 | * Finish a reference to a resource and then destroy the resource. | |
| 570 | * @ingroup resource | |
| 571 | * | |
| 572 | * This function blocks until all references to the resource have been | |
| 573 | * finished and then destroys the contents of the resource. This destruction | |
| 574 | * will take precedence over a not yet elapsed delayed destruction time set by | |
| 575 | * #globus_resource_set_destroy_time(). It is an | |
| 576 | * error to access the resource once this function returns. All subsequent | |
| 577 | * attempts to find this resource will fail. | |
| 578 | * | |
| 579 | * @param resource | |
| 580 | * Resource handle which is no longer being used. | |
| 581 | * | |
| 582 | * @retval GLOBUS_SUCCESS | |
| 583 | * Successfully finished using the resource handle. | |
| 584 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 585 | * Null resource handle passed to this function. | |
| 586 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_ALREADY_DESTROYED | |
| 587 | * The resource has already been destroyed. | |
| 588 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NO_REFERENCES | |
| 589 | * No references to resource exist. | |
| 590 | * | |
| 591 | * @see #globus_resource_create(), #globus_resource_destroy(), | |
| 592 | * #globus_resource_set_destroy_time() | |
| 593 | */ | |
| 594 | globus_result_t | |
| 595 | globus_resource_destroy( | |
| 596 | globus_resource_t resource) | |
| 597 | 141 | { |
| 598 | 141 | globus_result_t result = GLOBUS_SUCCESS; |
| 599 | 141 | globus_bool_t active; |
| 600 | 141 | GlobusFuncName(globus_resource_destroy); |
| 601 | ||
| 602 | 141 | GlobusResourceDebugEnter(); |
| 603 | 141 | if (resource == NULL) |
| 604 | { | |
| 605 | 1 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 606 | ||
| 607 | 1 | goto out; |
| 608 | } | |
| 609 | ||
| 610 | 140 | if (resource->lifetime_callback != GLOBUS_NULL_HANDLE) |
| 611 | { | |
| 612 | /* Try to cancel the lifetime callback */ | |
| 613 | 18 | result = globus_callback_unregister( |
| 614 | resource->lifetime_callback, | |
| 615 | NULL, | |
| 616 | NULL, | |
| 617 | &active); | |
| 618 | ||
| 619 | 18 | if (result != GLOBUS_SUCCESS || active) |
| 620 | { | |
| 621 | /* Callback can't be stopped---we'll rely on it to destroy the | |
| 622 | * service | |
| 623 | */ | |
| 624 | 18 | goto out; |
| 625 | } | |
| 626 | 18 | resource->lifetime_callback = GLOBUS_NULL_HANDLE; |
| 627 | 18 | resource->destroy_time.tv_sec = 0L; |
| 628 | 18 | resource->destroy_time.tv_nsec = 0L; |
| 629 | } | |
| 630 | ||
| 631 | 140 | globus_mutex_lock(&globus_l_wsrf_resource_lock); |
| 632 | /* | |
| 633 | * Release lock acquired during find or create. This allows other | |
| 634 | * interested threads to get their last grabs at this resource. | |
| 635 | */ | |
| 636 | 140 | globus_l_resource_unlock(resource); |
| 637 | ||
| 638 | /* Can't be found by other threads once this is removed from the hashtable | |
| 639 | */ | |
| 640 | 140 | (void) globus_hashtable_remove(&globus_l_wsrf_resources, resource->id); |
| 641 | ||
| 642 | /* Wait for other threads which have already partially found it to finish. | |
| 643 | */ | |
| 644 | 140 | while (resource->lock_count > 0 || resource->waiters > 0) |
| 645 | { | |
| 646 | 0 | globus_cond_wait(&resource->cond, &globus_l_wsrf_resource_lock); |
| 647 | } | |
| 648 | 140 | globus_mutex_unlock(&globus_l_wsrf_resource_lock); |
| 649 | ||
| 650 | /* this call releases the lock on the resource's recursive mutex */ | |
| 651 | 140 | globus_l_resource_destroy(resource); |
| 652 | ||
| 653 | out: | |
| 654 | 141 | GlobusResourceDebugExit(); |
| 655 | 141 | return result; |
| 656 | } | |
| 657 | /* globus_resource_destroy() */ | |
| 658 | ||
| 659 | /** | |
| 660 | * Retrieve resource-specific data from a resource handle. | |
| 661 | * @ingroup resource | |
| 662 | * | |
| 663 | * @param resource | |
| 664 | * Resource handle to query for data. | |
| 665 | * @param data | |
| 666 | * Pointer to be set to the value of resource-specific data. | |
| 667 | * | |
| 668 | * @retval GLOBUS_SUCCESS | |
| 669 | * Resource specific data successfully retrieved. | |
| 670 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 671 | * Null parameter passed to this function. The value of @a data is | |
| 672 | * undefined when this value is returned. | |
| 673 | * | |
| 674 | * @see #globus_resource_set_resource_specific() | |
| 675 | */ | |
| 676 | globus_result_t | |
| 677 | globus_resource_get_resource_specific( | |
| 678 | const globus_resource_t resource, | |
| 679 | void ** data) | |
| 680 | 56 | { |
| 681 | 56 | globus_result_t result = GLOBUS_SUCCESS; |
| 682 | 56 | GlobusFuncName(globus_resource_get_resource_specific); |
| 683 | ||
| 684 | 56 | GlobusResourceDebugEnter(); |
| 685 | ||
| 686 | 56 | if (resource == NULL || data == NULL) |
| 687 | { | |
| 688 | 2 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 689 | 2 | goto out; |
| 690 | } | |
| 691 | 54 | *data = resource->data; |
| 692 | ||
| 693 | out: | |
| 694 | 56 | GlobusResourceDebugExit(); |
| 695 | 56 | return result; |
| 696 | } | |
| 697 | /* globus_resource_get_resource_specific() */ | |
| 698 | ||
| 699 | /** | |
| 700 | * Set resource-specific data for a resource handle. | |
| 701 | * @ingroup resource | |
| 702 | * | |
| 703 | * @param resource | |
| 704 | * Resource handle to modify. | |
| 705 | * @param data | |
| 706 | * New value of the resource-specific data. If a non-NULL value was | |
| 707 | * previously set as resource-specific data, it will be destroyed. | |
| 708 | * @param destroy_func | |
| 709 | * Function pointer of a function to call to destroy the resource-specific | |
| 710 | * data. This will be called either when a new instance of | |
| 711 | * resource-specific data is set by calling this function again, or when | |
| 712 | * the resource is destroyed because of globus_resource_finish() being | |
| 713 | * called. | |
| 714 | * | |
| 715 | * @retval GLOBUS_SUCCESS | |
| 716 | * Resource specific data successfully set. | |
| 717 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 718 | * Null parameter passed to this function. | |
| 719 | * | |
| 720 | * @see #globus_resource_get_resource_specific(), #globus_resource_finish() | |
| 721 | */ | |
| 722 | globus_result_t | |
| 723 | globus_resource_set_resource_specific( | |
| 724 | globus_resource_t resource, | |
| 725 | void * data, | |
| 726 | globus_resource_destroy_t destroy_func) | |
| 727 | 25 | { |
| 728 | 25 | globus_result_t result = GLOBUS_SUCCESS; |
| 729 | 25 | GlobusFuncName(globus_resource_set_resource_specific); |
| 730 | ||
| 731 | 25 | GlobusResourceDebugEnter(); |
| 732 | 25 | if (resource == NULL) |
| 733 | { | |
| 734 | 1 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 735 | ||
| 736 | 1 | goto out; |
| 737 | } | |
| 738 | ||
| 739 | 24 | if ((resource->data != NULL) && (resource->data_destroy_func != NULL)) |
| 740 | { | |
| 741 | 1 | (resource->data_destroy_func)(resource->data); |
| 742 | } | |
| 743 | ||
| 744 | 24 | resource->data = data; |
| 745 | 24 | resource->data_destroy_func = destroy_func; |
| 746 | ||
| 747 | out: | |
| 748 | 25 | GlobusResourceDebugExit(); |
| 749 | 25 | return result; |
| 750 | } | |
| 751 | /* globus_resource_set_resource_specific() */ | |
| 752 | ||
| 753 | /** | |
| 754 | * Retrieve resource-specific data from a resource handle based on a key. | |
| 755 | * @ingroup resource | |
| 756 | * | |
| 757 | * @param resource | |
| 758 | * Resource handle to query for data. | |
| 759 | * @param key | |
| 760 | * Key describing the data. | |
| 761 | * @param data | |
| 762 | * Pointer to be set to the value of resource-specific data. | |
| 763 | * | |
| 764 | * @retval GLOBUS_SUCCESS | |
| 765 | * Resource specific data successfully retrieved. | |
| 766 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 767 | * Null parameter passed to this function. The value of @a data is | |
| 768 | * undefined when this value is returned. | |
| 769 | * | |
| 770 | * @see #globus_resource_set_resource_specific() | |
| 771 | */ | |
| 772 | globus_result_t | |
| 773 | globus_resource_get_resource_specific_by_key( | |
| 774 | const globus_resource_t resource, | |
| 775 | const char * key, | |
| 776 | void ** data) | |
| 777 | 0 | { |
| 778 | 0 | globus_i_resource_specific_data_t * data_info; |
| 779 | 0 | globus_result_t result = GLOBUS_SUCCESS; |
| 780 | 0 | GlobusFuncName(globus_resource_get_resource_specific); |
| 781 | ||
| 782 | 0 | GlobusResourceDebugEnter(); |
| 783 | 0 | if (resource == NULL || data == NULL) |
| 784 | { | |
| 785 | 0 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 786 | ||
| 787 | 0 | goto out; |
| 788 | } | |
| 789 | ||
| 790 | 0 | if (resource->keyed_data == NULL) |
| 791 | { | |
| 792 | 0 | *data = NULL; |
| 793 | } | |
| 794 | else | |
| 795 | { | |
| 796 | 0 | data_info = globus_hashtable_lookup( |
| 797 | &resource->keyed_data, | |
| 798 | (void *) key); | |
| 799 | ||
| 800 | 0 | if (data_info) |
| 801 | { | |
| 802 | 0 | *data = data_info->data; |
| 803 | } | |
| 804 | else | |
| 805 | { | |
| 806 | 0 | *data = NULL; |
| 807 | } | |
| 808 | } | |
| 809 | ||
| 810 | out: | |
| 811 | 0 | GlobusResourceDebugExit(); |
| 812 | ||
| 813 | 0 | return result; |
| 814 | } | |
| 815 | /* globus_resource_get_resource_specific_by_key() */ | |
| 816 | ||
| 817 | /** | |
| 818 | * Set resource-specific data for a resource handle based on a key. | |
| 819 | * @ingroup resource | |
| 820 | * | |
| 821 | * @param resource | |
| 822 | * Resource handle to modify. | |
| 823 | * @param data | |
| 824 | * New value of the resource-specific data. If a non-NULL value was | |
| 825 | * previously set as resource-specific data, it will be destroyed. | |
| 826 | * @param destroy_func | |
| 827 | * Function pointer of a function to call to destroy the resource-specific | |
| 828 | * data. This will be called either when a new instance of | |
| 829 | * resource-specific data is set by calling this function again, or when | |
| 830 | * the resource is destroyed because of globus_resource_finish() being | |
| 831 | * called. | |
| 832 | * | |
| 833 | * @retval GLOBUS_SUCCESS | |
| 834 | * Resource specific data successfully set. | |
| 835 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 836 | * Null parameter passed to this function. | |
| 837 | * | |
| 838 | * @see #globus_resource_get_resource_specific(), #globus_resource_finish() | |
| 839 | */ | |
| 840 | globus_result_t | |
| 841 | globus_resource_set_resource_specific_by_key( | |
| 842 | globus_resource_t resource, | |
| 843 | const char * key, | |
| 844 | void * data, | |
| 845 | globus_resource_destroy_t destroy_func) | |
| 846 | 134 | { |
| 847 | 134 | globus_result_t result = GLOBUS_SUCCESS; |
| 848 | 134 | int rc; |
| 849 | 134 | globus_i_resource_specific_data_t * data_info; |
| 850 | 134 | GlobusFuncName(globus_resource_set_resource_specific); |
| 851 | ||
| 852 | 134 | GlobusResourceDebugEnter(); |
| 853 | 134 | if (resource == NULL) |
| 854 | { | |
| 855 | 0 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 856 | ||
| 857 | 0 | goto out; |
| 858 | } | |
| 859 | ||
| 860 | 134 | if (data != NULL && resource->keyed_data == NULL) |
| 861 | { | |
| 862 | 93 | rc = globus_hashtable_init( |
| 863 | &resource->keyed_data, | |
| 864 | 3, | |
| 865 | globus_hashtable_string_hash, | |
| 866 | globus_hashtable_string_keyeq); | |
| 867 | ||
| 868 | 93 | if (rc != 0) |
| 869 | { | |
| 870 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 871 | ||
| 872 | 0 | goto out; |
| 873 | } | |
| 874 | } | |
| 875 | ||
| 876 | 134 | if (resource->keyed_data != NULL) |
| 877 | { | |
| 878 | 134 | data_info = globus_hashtable_lookup( |
| 879 | &resource->keyed_data, | |
| 880 | (void *) key); | |
| 881 | ||
| 882 | 134 | if (data_info == NULL) |
| 883 | { | |
| 884 | 134 | data_info = calloc(1, sizeof(globus_i_resource_specific_data_t)); |
| 885 | 134 | if (data_info == NULL) |
| 886 | { | |
| 887 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 888 | ||
| 889 | 0 | goto out; |
| 890 | } | |
| 891 | 134 | data_info->key = globus_libc_strdup(key); |
| 892 | ||
| 893 | 134 | if (data_info->key == NULL) |
| 894 | { | |
| 895 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 896 | ||
| 897 | 0 | goto free_data_info_out; |
| 898 | } | |
| 899 | ||
| 900 | 134 | rc = globus_hashtable_insert( |
| 901 | &resource->keyed_data, | |
| 902 | data_info->key, | |
| 903 | data_info); | |
| 904 | 134 | if (rc != GLOBUS_SUCCESS) |
| 905 | { | |
| 906 | 0 | result = GLOBUS_RESOURCE_ERROR_OUT_OF_MEMORY(); |
| 907 | ||
| 908 | 0 | goto free_data_info_key_out; |
| 909 | } | |
| 910 | } | |
| 911 | 0 | else if (data_info != NULL && data_info->data_destroy_func != NULL) |
| 912 | { | |
| 913 | 0 | (data_info->data_destroy_func)(data_info->data); |
| 914 | } | |
| 915 | ||
| 916 | 134 | data_info->data = data; |
| 917 | 134 | data_info->data_destroy_func = destroy_func; |
| 918 | } | |
| 919 | ||
| 920 | 134 | if (result != GLOBUS_SUCCESS) |
| 921 | { | |
| 922 | free_data_info_key_out: | |
| 923 | 0 | free(data_info->key); |
| 924 | free_data_info_out: | |
| 925 | 0 | free(data_info); |
| 926 | } | |
| 927 | out: | |
| 928 | 134 | GlobusResourceDebugExit(); |
| 929 | ||
| 930 | 134 | return result; |
| 931 | } | |
| 932 | /* globus_resource_set_resource_specific_by_key() */ | |
| 933 | ||
| 934 | /** | |
| 935 | * Retrieve resource-specific type registry from a resource handle. | |
| 936 | * @ingroup resource | |
| 937 | * | |
| 938 | * @param resource | |
| 939 | * Resource handle to query for data. | |
| 940 | * @param registry | |
| 941 | * Pointer to be set to the value of type registry. | |
| 942 | * | |
| 943 | * @retval GLOBUS_SUCCESS | |
| 944 | * Type registry successfully retrieved. | |
| 945 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 946 | * Null parameter passed to this function. The value of @a registry is | |
| 947 | * undefined when this value is returned. | |
| 948 | * | |
| 949 | * @see #globus_resource_set_type_registry() | |
| 950 | */ | |
| 951 | globus_result_t | |
| 952 | globus_resource_get_type_registry( | |
| 953 | globus_resource_t resource, | |
| 954 | globus_xsd_type_registry_t * registry) | |
| 955 | 4 | { |
| 956 | 4 | globus_result_t result = GLOBUS_SUCCESS; |
| 957 | 4 | GlobusFuncName(globus_resource_get_type_registry); |
| 958 | ||
| 959 | 4 | GlobusResourceDebugEnter(); |
| 960 | ||
| 961 | 4 | if (resource == NULL || registry == NULL) |
| 962 | { | |
| 963 | 2 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 964 | ||
| 965 | 2 | goto out; |
| 966 | } | |
| 967 | 2 | *registry = resource->registry; |
| 968 | ||
| 969 | out: | |
| 970 | 4 | GlobusResourceDebugExit(); |
| 971 | 4 | return result; |
| 972 | } | |
| 973 | /* globus_resource_get_type_registry() */ | |
| 974 | ||
| 975 | /** | |
| 976 | * Set type registry associated with a resource handle. | |
| 977 | * @ingroup resource | |
| 978 | * | |
| 979 | * @param resource | |
| 980 | * Resource handle to modify. | |
| 981 | * @param registry | |
| 982 | * New value for the resource's type registry. | |
| 983 | * | |
| 984 | * @retval GLOBUS_SUCCESS | |
| 985 | * Resource's type registry successfully set. | |
| 986 | * @retval GLOBUS_WSRF_RESOURCE_ERROR_TYPE_NULL_PARAM | |
| 987 | * Null parameter passed to this function. | |
| 988 | * | |
| 989 | * @see #globus_resource_get_type_registry() | |
| 990 | */ | |
| 991 | globus_result_t | |
| 992 | globus_resource_set_type_registry( | |
| 993 | globus_resource_t resource, | |
| 994 | globus_xsd_type_registry_t registry) | |
| 995 | 1 | { |
| 996 | 1 | globus_result_t result = GLOBUS_SUCCESS; |
| 997 | ||
| 998 | 1 | GlobusFuncName(globus_resource_set_type_registry); |
| 999 | ||
| 1000 | 1 | GlobusResourceDebugEnter(); |
| 1001 | 1 | if (resource == NULL || registry == NULL) |
| 1002 | { | |
| 1003 | 0 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 1004 | ||
| 1005 | 0 | goto out; |
| 1006 | } | |
| 1007 | ||
| 1008 | 1 | resource->registry = registry; |
| 1009 | ||
| 1010 | out: | |
| 1011 | 1 | GlobusResourceDebugExit(); |
| 1012 | 1 | return result; |
| 1013 | } | |
| 1014 | /* globus_resource_set_type_registry() */ | |
| 1015 | ||
| 1016 | globus_result_t | |
| 1017 | globus_resource_get_id( | |
| 1018 | const globus_resource_t resource, | |
| 1019 | const char ** resource_id) | |
| 1020 | 414 | { |
| 1021 | 414 | globus_result_t result = GLOBUS_SUCCESS; |
| 1022 | ||
| 1023 | 414 | GlobusFuncName(globus_resource_get_id); |
| 1024 | ||
| 1025 | 414 | GlobusResourceDebugEnter(); |
| 1026 | 414 | if (resource == NULL || resource_id == NULL) |
| 1027 | { | |
| 1028 | 0 | result = GLOBUS_RESOURCE_ERROR_NULL_PARAM(); |
| 1029 | ||
| 1030 | 0 | goto out; |
| 1031 | } | |
| 1032 | ||
| 1033 | 414 | *resource_id = resource->id; |
| 1034 | ||
| 1035 | out: | |
| 1036 | 414 | GlobusResourceDebugExit(); |
| 1037 | ||
| 1038 | 414 | return result; |
| 1039 | } | |
| 1040 | ||
| 1041 | #ifndef GLOBUS_DONT_DOCUMENT_INTERNAL | |
| 1042 | /** | |
| 1043 | * Destroy a resource stored in the resource hashtable at deactivation time. | |
| 1044 | * Resources could have | |
| 1045 | * - references from finds which were not finished | |
| 1046 | * - other threads blocking in globus_resource_destroy() | |
| 1047 | * - other threads blocking in a callback from | |
| 1048 | * globus_resource_set_destroy_time() | |
| 1049 | * This function is called with the resource mutex locked. | |
| 1050 | */ | |
| 1051 | static | |
| 1052 | void | |
| 1053 | globus_l_wsrf_resource_hashtable_destroy( | |
| 1054 | void * datum) | |
| 1055 | 259 | { |
| 1056 | 259 | globus_resource_t resource = datum; |
| 1057 | 259 | globus_bool_t active = GLOBUS_FALSE; |
| 1058 | 259 | int rc; |
| 1059 | 259 | GlobusFuncName(globus_l_wsrf_resource_hashtable_destroy); |
| 1060 | ||
| 1061 | 259 | GlobusResourceDebugEnter(); |
| 1062 | ||
| 1063 | 259 | rc = globus_l_resource_try_lock(resource); |
| 1064 | ||
| 1065 | 259 | if (rc == EBUSY) |
| 1066 | { | |
| 1067 | /* Why is this locked? Missing finish? */ | |
| 1068 | ||
| 1069 | 0 | goto out; |
| 1070 | } | |
| 1071 | ||
| 1072 | /* If a callback is registered, try to remove it; if that fails, then | |
| 1073 | * the callback code will try to destroy the resource, so we'll act | |
| 1074 | * later as if a destroy call was already blocking. | |
| 1075 | */ | |
| 1076 | 259 | if (resource->lifetime_callback != GLOBUS_NULL_HANDLE) |
| 1077 | { | |
| 1078 | 1 | globus_callback_unregister( |
| 1079 | resource->lifetime_callback, | |
| 1080 | NULL, | |
| 1081 | NULL, | |
| 1082 | &active); | |
| 1083 | ||
| 1084 | 1 | resource->lifetime_callback = GLOBUS_NULL_HANDLE; |
| 1085 | } | |
| 1086 | ||
| 1087 | 259 | if (! active) |
| 1088 | { | |
| 1089 | /* No destroy is in progress for this resource, so we must | |
| 1090 | * free it ourselves. | |
| 1091 | */ | |
| 1092 | ||
| 1093 | 259 | globus_mutex_unlock(&globus_l_wsrf_resource_lock); |
| 1094 | 259 | globus_l_resource_destroy(resource); |
| 1095 | 259 | globus_mutex_lock(&globus_l_wsrf_resource_lock); |
| 1096 | } | |
| 1097 | out: | |
| 1098 | 259 | GlobusResourceDebugExit(); |
| 1099 | } | |
| 1100 | /* globus_l_wsrf_resource_hashtable_destroy() */ | |
| 1101 | ||
| 1102 | /** | |
| 1103 | * Free memory associated with a resource handle. | |
| 1104 | * When this function is called for a resource, all callbacks and threads | |
| 1105 | * blocking on the condition of this resource must be finished, otherwise | |
| 1106 | * weird things may happen in those threads. | |
| 1107 | * | |
| 1108 | * This function is called with the mutex locked. | |
| 1109 | * | |
| 1110 | * @param datum | |
| 1111 | * Pointer to the resource. | |
| 1112 | */ | |
| 1113 | static | |
| 1114 | void | |
| 1115 | globus_l_resource_destroy( | |
| 1116 | globus_resource_t resource) | |
| 1117 | 399 | { |
| 1118 | 399 | GlobusFuncName(globus_l_resource_destroy); |
| 1119 | ||
| 1120 | 399 | GlobusResourceDebugEnter(); |
| 1121 | ||
| 1122 | 399 | if (resource->data && resource->data_destroy_func) |
| 1123 | { | |
| 1124 | 7 | resource->data_destroy_func(resource->data); |
| 1125 | } | |
| 1126 | ||
| 1127 | 399 | if (resource->keyed_data != NULL) |
| 1128 | { | |
| 1129 | 59 | globus_hashtable_destroy_all( |
| 1130 | &resource->keyed_data, | |
| 1131 | globus_l_resource_destroy_keyed_data); | |
| 1132 | } | |
| 1133 | ||
| 1134 | 399 | if (resource->lifetime_callback != GLOBUS_NULL_HANDLE) |
| 1135 | { | |
| 1136 | 0 | globus_callback_unregister( |
| 1137 | resource->lifetime_callback, | |
| 1138 | NULL, | |
| 1139 | NULL, | |
| 1140 | NULL); | |
| 1141 | } | |
| 1142 | 399 | if (resource->resource_properties != NULL) |
| 1143 | { | |
| 1144 | 399 | globus_hashtable_destroy_all( |
| 1145 | &resource->resource_properties, | |
| 1146 | globus_l_resource_property_destroy); | |
| 1147 | } | |
| 1148 | 399 | globus_list_destroy_all(resource->property_changed_callbacks, free); |
| 1149 | 399 | globus_libc_free(resource->id); |
| 1150 | ||
| 1151 | 399 | globus_cond_destroy(&resource->cond); |
| 1152 | ||
| 1153 | 399 | globus_libc_free(resource); |
| 1154 | ||
| 1155 | 399 | GlobusResourceDebugExit(); |
| 1156 | } | |
| 1157 | /* globus_l_resource_destroy() */ | |
| 1158 | ||
| 1159 | /** | |
| 1160 | * Free memory associated with a resource property. | |
| 1161 | * | |
| 1162 | * Function signature uses a void * to match the globus_hashtable_destroy_all() | |
| 1163 | * prototype. | |
| 1164 | * | |
| 1165 | * @param datum | |
| 1166 | * Pointer to a globus_resource_property_t to destroy. | |
| 1167 | */ | |
| 1168 | static | |
| 1169 | void | |
| 1170 | globus_l_resource_property_destroy( | |
| 1171 | void * datum) | |
| 1172 | 744 | { |
| 1173 | 744 | globus_resource_property_t * prop = datum; |
| 1174 | 744 | GlobusFuncName(globus_l_resource_property_destroy); |
| 1175 | ||
| 1176 | 744 | GlobusResourceDebugEnter(); |
| 1177 | ||
| 1178 | 744 | if (prop->property) |
| 1179 | { | |
| 1180 | 342 | prop->type_info->destroy(prop->property); |
| 1181 | } | |
| 1182 | 744 | if (prop->name.Namespace) |
| 1183 | { | |
| 1184 | 744 | globus_libc_free(prop->name.Namespace); |
| 1185 | } | |
| 1186 | 744 | if (prop->name.local) |
| 1187 | { | |
| 1188 | 744 | globus_libc_free(prop->name.local); |
| 1189 | } | |
| 1190 | 744 | globus_libc_free(prop); |
| 1191 | ||
| 1192 | 744 | GlobusResourceDebugExit(); |
| 1193 | } | |
| 1194 | /* globus_l_resource_property_destroy() */ | |
| 1195 | ||
| 1196 | static | |
| 1197 | void | |
| 1198 | globus_l_resource_lifetime_expired( | |
| 1199 | void * arg) | |
| 1200 | 2 | { |
| 1201 | 2 | char * id = arg; |
| 1202 | 2 | globus_resource_t resource; |
| 1203 | 2 | globus_result_t result; |
| 1204 | 2 | GlobusFuncName(globus_l_resource_lifetime_expired); |
| 1205 | ||
| 1206 | 2 | GlobusResourceDebugEnter(); |
| 1207 | ||
| 1208 | 2 | result = globus_resource_find(id, &resource); |
| 1209 | ||
| 1210 | 2 | if (result == GLOBUS_SUCCESS) |
| 1211 | { | |
| 1212 | 2 | globus_callback_unregister( |
| 1213 | resource->lifetime_callback, | |
| 1214 | NULL, | |
| 1215 | NULL, | |
| 1216 | NULL); | |
| 1217 | 2 | resource->lifetime_callback = GLOBUS_NULL_HANDLE; |
| 1218 | 2 | globus_resource_destroy(resource); |
| 1219 | } | |
| 1220 | 2 | GlobusResourceDebugExit(); |
| 1221 | } | |
| 1222 | /* globus_l_resource_lifetime_expired() */ | |
| 1223 | ||
| 1224 | /* called with globus_l_wsrf_resource_lock already locked */ | |
| 1225 | static | |
| 1226 | int | |
| 1227 | globus_l_resource_try_lock( | |
| 1228 | globus_resource_t resource) | |
| 1229 | 259 | { |
| 1230 | 259 | globus_thread_t thread_id = globus_thread_self(); |
| 1231 | 259 | int rc = 0; |
| 1232 | 259 | GlobusFuncName(globus_l_resource_try_lock); |
| 1233 | ||
| 1234 | 259 | GlobusResourceDebugEnter(); |
| 1235 | ||
| 1236 | 259 | if (resource->lock_count > 0 && |
| 1237 | !globus_thread_equal(resource->thread_id, thread_id)) | |
| 1238 | { | |
| 1239 | 0 | rc = EBUSY; |
| 1240 | ||
| 1241 | 0 | goto out; |
| 1242 | } | |
| 1243 | 259 | resource->lock_count++; |
| 1244 | 259 | resource->thread_id = thread_id; |
| 1245 | ||
| 1246 | out: | |
| 1247 | 259 | GlobusResourceDebugExit(); |
| 1248 | 259 | return rc; |
| 1249 | } | |
| 1250 | /* globus_l_resource_try_lock() */ | |
| 1251 | ||
| 1252 | /* called with globus_l_wsrf_resource_lock already locked */ | |
| 1253 | static | |
| 1254 | void | |
| 1255 | globus_l_resource_lock( | |
| 1256 | globus_resource_t resource) | |
| 1257 | 3276 | { |
| 1258 | 3276 | globus_thread_t thread_id = globus_thread_self(); |
| 1259 | 3276 | GlobusFuncName(globus_l_resource_lock); |
| 1260 | ||
| 1261 | 3276 | GlobusResourceDebugEnter(); |
| 1262 | ||
| 1263 | 3276 | GlobusResourceDebugPrintf(GLOBUS_L_RESOURCE_DEBUG_DEBUG, |
| 1264 | ("Trying to lock resource %p\n", resource)); | |
| 1265 | ||
| 1266 | 3276 | if (resource->lock_count > 0 && |
| 1267 | !globus_thread_equal(resource->thread_id, thread_id)) | |
| 1268 | { | |
| 1269 | 0 | GlobusResourceDebugPrintf(GLOBUS_L_RESOURCE_DEBUG_DEBUG, |
| 1270 | ("added to waiters list for %p [%d others]\n", | |
| 1271 | resource, | |
| 1272 | resource->waiters)); | |
| 1273 | 0 | resource->waiters++; |
| 1274 | ||
| 1275 | 0 | do |
| 1276 | { | |
| 1277 | 0 | GlobusResourceDebugPrintf(GLOBUS_L_RESOURCE_DEBUG_DEBUG, |
| 1278 | ("waiting for condition for resource %p\n", resource)); | |
| 1279 | 0 | globus_cond_wait(&resource->cond, &globus_l_wsrf_resource_lock); |
| 1280 | 0 | } while (resource->lock_count > 0); |
| 1281 | ||
| 1282 | 0 | resource->waiters--; |
| 1283 | } | |
| 1284 | 3276 | resource->lock_count++; |
| 1285 | 3276 | resource->thread_id = thread_id; |
| 1286 | 3276 | GlobusResourceDebugPrintf(GLOBUS_L_RESOURCE_DEBUG_DEBUG, |
| 1287 | ("locked resource %p [lock count %d]\n", | |
| 1288 | resource, resource->lock_count)); | |
| 1289 | 3276 | GlobusResourceDebugExit(); |
| 1290 | } | |
| 1291 | ||
| 1292 | /* called with globus_l_wsrf_resource_lock already locked */ | |
| 1293 | static | |
| 1294 | void | |
| 1295 | globus_l_resource_unlock( | |
| 1296 | globus_resource_t resource) | |
| 1297 | 3458 | { |
| 1298 | 3458 | globus_thread_t thread_id = globus_thread_self(); |
| 1299 | 3458 | GlobusFuncName(globus_l_resource_lock); |
| 1300 | ||
| 1301 | 3458 | GlobusResourceDebugEnter(); |
| 1302 | ||
| 1303 | 3458 | GlobusResourceDebugPrintf(GLOBUS_L_RESOURCE_DEBUG_DEBUG, |
| 1304 | ("trying to unlock resource %p [lock count %d]\n", | |
| 1305 | resource, resource->lock_count)); | |
| 1306 | ||
| 1307 | 3458 | globus_assert(resource->lock_count > 0); |
| 1308 | 3458 | globus_assert(globus_thread_equal(resource->thread_id, thread_id)); |
| 1309 | ||
| 1310 | 3458 | if (--resource->lock_count == 0) |
| 1311 | { | |
| 1312 | 3263 | GlobusResourceDebugPrintf(GLOBUS_L_RESOURCE_DEBUG_DEBUG, |
| 1313 | ("Unlock resource %p [%d waiters] \n", | |
| 1314 | resource, resource->waiters)); | |
| 1315 | 3263 | memset(&resource->thread_id, '\0', sizeof(globus_thread_t)); |
| 1316 | ||
| 1317 | 3263 | globus_cond_broadcast(&resource->cond); |
| 1318 | } | |
| 1319 | 3458 | GlobusResourceDebugExit(); |
| 1320 | } | |
| 1321 | /* globus_l_resource_unlock() */ | |
| 1322 | ||
| 1323 | static | |
| 1324 | void | |
| 1325 | globus_l_resource_destroy_keyed_data( | |
| 1326 | void * p) | |
| 1327 | 97 | { |
| 1328 | 97 | globus_i_resource_specific_data_t * data_info = p; |
| 1329 | 97 | GlobusFuncName(globus_l_resource_destroy_keyed_data); |
| 1330 | ||
| 1331 | 97 | GlobusResourceDebugEnter(); |
| 1332 | ||
| 1333 | 97 | if (data_info->data != NULL && data_info->data_destroy_func != NULL) |
| 1334 | { | |
| 1335 | 97 | data_info->data_destroy_func(data_info->data); |
| 1336 | } | |
| 1337 | 97 | free(data_info->key); |
| 1338 | 97 | free(data_info); |
| 1339 | ||
| 1340 | 97 | GlobusResourceDebugExit(); |
| 1341 | } | |
| 1342 | /* globus_l_resource_destroy_keyed_data() */ |